//the increment operator
#include <iostream>
int main()
{
    using std::cout;
    int a = 20;
    int b = 20;
    cout << "a = " <<a<<": b = " <<b <<"\n";
    cout << "a++ = "<<a++<< ": ++b = "<<++b<<"\n";
    cout << "a = "<<a << ":  b = " << b << "\n";
    return 0;
}
